Harness attachment for looms.



No. 656,!69. Patented Aug. 2|, I900.

P. CASSIDY. H'ABNESS ATTACHMENT FOR LOOMS.

(Application filed Oct. 14, 1899.) (No Model.)

UNITED STATES PATENT OFFICE.

PATRICK OASSIDY, OF SALEM, MASSACHUSETTS.

HARNESS ATTACHMENT FOR LOOMS.

SPECIFICATION forming part of Letters Patent no. 656,169, dated August 21, 1900. Application filed October 14, 1899. Serial No. 733,631- (No model-) To all whom, it may concern:

Be it known that I, PATRICK CASSIDY, a citizen of the United States, residing at Salem, in the county of Essex and State of Massachusetts, have invented a new and useful I-Iarness Attachment for Looms, of which the following is a specification.

My invention relates generally to harnessmotions for looms for weaving textile fabrics, and more particularly to motions for the harness which receives the warp-threads of the selvages, the object of the invention being to provide an improved attachment for rollerlooms for operating the selvage-harness thereof, which attachment shall be composed of a minimum number of very simple parts, can be attached quickly to the loom without in any manner altering the construction of any part thereof, will be exceedingly economical and durable in construction, and thoroughly reliable in operation.

In the drawings forming part of this speci fication, Figure 1 is a view, in front elevation, I

of part of a loom having my invention applied thereto, only so much of the loom being shown as is necessary to illustrate the application of the improvement. Fig. 2 is a detail section, partly in elevation, taken on the line 2 2 of Fig. 1. Fig. 3 is a detail perspective view showing a portion of my improved attachment; and Figs. 4, 5, 6, and 7 show further details of construction. I

Inasmuch as both ends of the loom are constructed exactly alike it will of course be understood that it is only necessaryto illustrate the attachment as applied to the one end of the loom.

Like letters of reference mark the same parts wherever they appear in the various figures of the drawings.

Referring to the drawings by letters, A indicates the arch of the frame of the loom; B B, the harness-rollers at each end; 0 C,the straps, secured to rollers B B by means of set-screws B said straps O 0 being attached to rollers D D, to which straps E F are secured by setscrews E F, said straps E F carrying the harness-frames G, which are moved up and down by any usual levers and cams (not shown) in a well-known manner, the. parts thus far described being old and well known and formin g the harness-motion of what is technically called a four-harness motion, the loom being what is known to the trade as a rollerloom, owing to the fact that the harness is sup- 5 5 13 and each provided with a longitudinal slot H I J indicate cross-arms composed of wire bent to form hooks at the ends, as at I J, each of said crossarms being positioned on one end of the extension-arms H and secured thereon at any desired distance from the roller B by means of a boltK, passed through slot H having a double-hooked head K to grip and hold the parallel wires of the crossarm by means of a nut K L indicates a bracket shaped at one end, as

at L, to fit upon the arch A, such bracket being secured to the arch by a screw, as at L, and havingbifurcated or forked arms M M, in which are fixed pins M M, upon which are journaled antifriction or roller spools M M.

N indicates a bracket secured to the floor or otherbasic support by means of a screw or screws N, said bracket having bifurcated or forked arms 0 O, in which is fixed a pin 0, upon which is journaled an antifriction or roller spool 0 P P indicate the heddles of the selvage-harness, connected at their upper edges to the hook ends I J of cross-arms I and J by straps Q Q and provided with hooks R R at their lower edges, upon which are attached the ends of a strap R, which passes around the spool 0 The strap Q passes under one of the spools M and over the other, as clearly shown in Fig. 2, thus bringing the heddles P P quite close to each other, giving an even shed for the passage of the shuttle.

When the harness-frames G are alternately carried up and down in their usual operation, the rollers 13 B are rocked, carrying the ex tension-arms II with them and oscillating the cross-arms I J, causing the selvage-heddles IOU to be raised and lowered alternately, the selvage-heddles being held vertical and in the proper relative positions by the straps R.

The selvage harness motion herein described can be made at an extremely low cost, is extremely simple in construction, and can be put in position or taken ott' any ordinary roller-loom in about one-fourth the time it takes to adjust any motion with which I am acquainted.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a loom, the combination with the upper roller of the harness-motion, of an extension-arm secured thereto in line with the roller, a cross-arm secured on the extension, and selvage-heddles connected to the ends of the cross-arm, substantially as described.

2. In a loom, the combination with the selvage-heddles, of an oscillating cross-arm, a bracket secured to the frame of the loom carrying two rollers or spools, a strap connecting one heddle with one end of the cross-arm direct and a strap connecting the other heddle with the other end of the cross-arm and passing under one and over the other spool or roller, substantially as described.

3. In a loom, the combination with the upper harness-motion roller, and the usual strap connecting it with the harness; of an extension-arm fitted at one end over the roller, a set-screw securing both the strap and extension to the roller, and a cross-arm secured to the extension-arm and carrying the selvageheddles, substantially as described.

4. In a loom, the combination with the up-' per harness-motion roller, of an extensionarm secured thereto in line with the roller and longitudinally slotted, a cross-arm on the extension adapted to carry the selvage-heddles, and a screw-bolt passing through the slot of the extension-arm, having a head fitting over the cross-arm, and a nut threaded on the bolt; whereby the cross-arm is securely but adjustably clamped upon the extension, substantially as described.

5. In a loom, the combination with the harness-motion roller and an arm in line therewith, removablysecured thereon, and longitu- 6. In a loom, a sclvage-harness motion comprising the harness-motion roller, an extension-arm secured thereto and in line therewith, a cross-arm on the extension, straps attached at the ends of the cross-arm, selvageheddles suspended by said straps, a bracket attached to the floor or other basic support, a roller therein, and a strap attached to the lower edges of the selvage-heddles and passed around said roller, substantially as described.

7. The combination,with a loom, of an arm, one end of which is provided with means for securing it to the harness-roller, and the other end is provided with a cross-arm, said crossarm being provided with means for connecting the selvage-harness therewith, and means for adjusting the length of the cross-arm and also adjusting it relatively to the first-mentioned arm.

8. In an attachment for looms the combination, with an arm, one end of which is provided with means for detachably connecting it with the harness-roller and the other end is slotted longitudinally, a bolt through said slot, of two wires secured under the head of said bolt, the outer end of each of which is formed into a look by means of which the selvageharness is connected therewith.

9. In an attachment for looms the combination, with an arm, one end of which is provided with means for securing it to the harnessaoller and the other end is provided with means for connecting the straps of the selvage-harness thereto, of a bracket provided with two rollers and with means for detachably'securing it to the arch of the loom, said rollers being so arranged that one of said straps may pass under one and over the other.

PATRICK CASSIDY.

Witnesses:

THOMAS LEONARD, PATRICK LEONARD. 

